Plant nutrient requirements

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17
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1answer
2k views

How can I correct a nutrient excess in soil?

The soil sample I took last fall from my vegetable garden came back from the lab with this result: Optimum Range Calcium, Mehlich 3 (Ca) 2063 (...
15
votes
1answer
8k views

What is my citrus deficiency, based on leaf appearance? And how to treat?

In the images of my citrus below, you can see the leaves are paling towards the edges. What is the deficiency and how can I fix it? The soil is clay-dominated with some sand and coloured red, ...
14
votes
1answer
348 views

What are the primary nutrients utilized by plants beyond NPK?

When talking about soil and fertilizers, what are the primary nutrients in addition to NPK (Nitrogen, Phosphorus, Potassium) that play a major role in plant development?
13
votes
4answers
683 views

Are “minerals” and “nutrients” the same thing?

Some good answers on this question: Is it worth spreading ash on the vegetable plot?. But one answer says: I can't think of any minerals that would be present and the other upvoted answer says:...
13
votes
3answers
2k views

Are there any benefits from leaving dead leaves in the soil around a plant?

Do the dying/dead leaves that fall off young plants provide any nutrients or any benefit to the existing plant, if left in the soil around the plant?
12
votes
1answer
405 views

What are the differences between above and below ground irrigation?

Is there a major difference in effectiveness of delivery of water/nutrients through the use of above ground (sprinkler, flooding, etc) versus below ground (buried drip pipes) irrigation systems?
11
votes
8answers
3k views

Do any plants add nutrients back into the soil as they grow?

It seems reasonable that there ought to be at least a few symbiotic plant varieties that benefit from improving soil condition for other plants. If not that, are there plants that essentially improve ...
8
votes
2answers
380 views

Is it really necessary to rotate runner beans?

A firm believer in 3-year crop rotation, I sow my runner beans in a different plot every year. After they crop, I dig their stems and roots into the soil, to replenish it with their captured nitrogen; ...
7
votes
3answers
99 views

How can I organically make the soil potassium rich?

I believed that my tomato plants suffer from potassium deficiency, and by searching it on google it states that I can easily fix it by putting potassium fertilizer in my soil. I am now thinking on ...
7
votes
2answers
4k views

What are the pros and cons of different rock dusts?

Rockdust is powdered rock that helps give plants extra minerals (such as silica for strong leaves and stems), trace minerals, calcium, iron etc. They can increase the soil pH somewhat, too. Rockdust ...
7
votes
1answer
83 views

What are methods of increasing the protein content of garden vegetables?

I read a random article about the effects of a certain fertilizer on tomatoes and how it happened to increase the protein content of the tomatoes relative to other fertilizers (1, 2) and it piqued my ...
7
votes
1answer
113 views

Can I measure chemical elements in soil myself?

What sort of equipment would one need to ensure that plant soil contains the right concentration of the 13 mineral nutrients necessary for plant growth? Specifically, can this be measured in real-time ...
7
votes
1answer
954 views

What nutrient solution is best for hydroponic basil?

What hydroponic nutrient solution is best for growing basil? I'd prefer to know what characteristics to look for rather than a particular brand or product.
6
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2answers
58 views

Can I ignore soil pH and just give blueberries chelated iron?

As Why do blueberries need acidic soil? points out, it seems that iron is really the biggest nutrient to suffer in alkaline conditions. Even an answer there, despite a nice emphasis on the broader ...
5
votes
1answer
533 views

At what point do seedlings start to need nutrients? [duplicate]

A seed has all the food it needs to germinate so water is enough to make it grow, after that though, at what point are minerals and other nutrients needed? I suspect the time would depend on the type ...
5
votes
1answer
109 views

What are the best components for producing compost which supply maximum nutrients?

People made compost from different components but they cannot realize about nutrient amount in the compost. So it is essential for selecting appropriate components. It is very important for organic ...
5
votes
1answer
97 views

Nutritional value of home-compostable plastic?

There are types of compostable plastic that you can compost yourself at home (as opposed to compostable plastic that can only be composted in industrial composting facilities). I was wondering if ...
4
votes
3answers
596 views

My first strawberries of the season are not very flavorful

I have a strawberry patch that I've left go for the past few years. It's gotten rather wild in the back garden as I've had little time to really devote to gardening lately. I went out to the patch ...
4
votes
3answers
183 views

Is it OK to use human waste or spent cat litter for fertilizing edibles?

Is it OK to use human waste or spent cat litter directly into the soil where you grow fruits and vegetables?
4
votes
2answers
2k views

Can I give sugar (or something similar) to flowering plants?

I was wondering if it's possible/advisable to give a flowering plant or any plant for that matter, sugar (or something similar) in addition to plant food?
4
votes
1answer
3k views

Is it too late to add sulfur to my vegetable garden soil?

My soil test from my local county extension office says: Your pH is 7.4 ... You should incorporate sulfur to a depth of 6" at a rate of ½ lb per 100 sq. feet at least 6 weeks before planting in ...
4
votes
1answer
33 views

New Sod Installation - TLC

I just had SOD installed in my yard. I live in Arizona so our dirt/soil is not the best. I checked under some of the SOD cuts and didn't see that any mulch/seeds/nutrients were used which worries me a ...
4
votes
2answers
430 views

How should I care for a potted apple seedling?

About two weeks ago, a friend of mine ate an apple and found that the seeds had already sprouted inside the apple. I thought this was pretty cool, so I put them in a cup to grow. They grew into "...
4
votes
1answer
142 views

Why are my blackberry leaves tasting like sulfur?

People don't always realise but you can eat a certain amount of blackberry leaves (and use them as herbs to make tea for diarrhea and stuff). The tea usually tastes and smells pretty good (kind of ...
4
votes
1answer
163 views

What would cause only one cane of a raspberry plant to show nutrient defficiency?

I have a Canby raspberry plant. One cane is showing some form of nutrient deficiency. On other hand, the other stalk is is flourishing and even budding fruit. What would cause this, seeing as the two ...
3
votes
3answers
62 views

Tomato plant-Yellowing of older leaves with necrosis of green leaves- flowers falling off without fruiting

The Internet has led me to suspect this is a nutrient issue but I can't figure out which nutrient or if that's true. This is a cherry tomato plant. It gets moderate sun- direct sun for about 3 hours ...
3
votes
1answer
46 views

Approximately how rich is the soil that's permanent-black dirt?

Unless you've dug around in a swamp you probably haven't seen the dirt that's permanently black (or the dirt that's built up over 1000s of years from decomposing plants), so I was wondering how rich ...
3
votes
1answer
40 views

Do different cultivars of a species have different growing conditions?

I am a novice at growing plants and want to grow bulls blood beet to harvest as a micro green. I shall be doing this in a greenhouse, but I want to know if growing different cultivars(variaties? ) of ...
3
votes
1answer
376 views

Can frog droppings be used as fertilizer?

In the context I am thinking, I would essentially be mixing the droppings into the topsoil in a plant bed. How much would be too much? How much would be too little to make a difference? Nutrient ...
3
votes
1answer
33 views

What is special in commercial off-the-shelf liquid nutricient mixtures?

I discovered there are bottled off-the-shelf liquid nutricient mixtures available to buy. Is there some special factor in them (a.k.a. secret magic) or is this just mumbo-jumbo and there are just ...
3
votes
1answer
36 views

Will foliar sprays affect bioavailability of nutrients in soil and vice versa?

Calcium nitrate is a nitrogen fertilizer that can also be used to give plants calcium. I've read that you shouldn't combine calcium nitrate with sulfates and certain kinds of phosphorus (I believe ...
3
votes
2answers
454 views

Is rice water good for a hyacinth plant?

I'm not sure I did the right thing to my hyacinth plant. It's growing in a pot with dirt brought from Whole Foods. I poured cool water that I'd used for rinsing rice on it, and the next day the flower ...
3
votes
1answer
155 views

What is this disease or nutrient difficiency on my Parfianka Pomegranate?

I've had a 3 foot tall Parfianka Pomegranate tree planted in the ground for several months. It gets about 7 hours of direct sunlight per day. It's been fertilized with compost, mycorrhizae enriched 10-...
3
votes
2answers
173 views

Nutrition for a Navel Orange

Need some help keeping my navel orange healthy. The first image shows the (semi-dwarf) navel orange shortly after I planted it in September 2012 (around 8 to 9 months ago from writing this post). The ...
3
votes
0answers
32 views

Units of nutrient uptake rate in hydroponics?

I'm studying the nutrient uptake by plants in hydroponics. I found that in many literatures, the uptake rate was expressed as xx (mg m-2 hour-1). Does anyone know what does that per square meter mean? ...
2
votes
2answers
75 views

Which method of growing food crops leads to the healthiest plant with the highest nutrient density? [closed]

Plants can be fed organically ( avoiding the use of pesticides, using organic matter to provide nutrients), inorganically ( using chemical fertilizers ), or soilessly when the roots are fed by a ...
2
votes
1answer
3k views

How is nutritional value in fruit and vegetables measured?

We often read in books and Wikipedia that certain fruits or vegetables contain certain amount of vitamins, minerals and other elements. An example can be seen on Beetroot in the box with nutritional ...
2
votes
1answer
26 views

Is it true that having only one fruit per vine makes it taste better?

I had noticed how expensive square watermellon is and apparently the reason for that is because often times farmers will only grow one watermellon per vine as opposed to the normal four or five per ...
2
votes
1answer
161 views

Why would one tomato plant be full of tomatoes and the other one be empty?

I planted two tomato plants in my first garden and one has developed about a dozen green tomatoes ranging from marble-sized to 3/4 tennis ball-sized but the other, same exact species, has no tomatoes. ...
2
votes
1answer
60 views

How do trees respond to solid, isolated, chunks of minerals such as iron, placed in the root zone?

Let's say you had a cast-iron pan and an apple tree that you were going to plant. Let's say you dug a large hole, threw the pan in and planted the tree near the pan. One might imagine that the tree ...
2
votes
1answer
247 views

Organic method of helping a Manganese deficient lemon tree

My young lemon tree has yellow blotches on some of its leaves, even though the leaves are quite newly grown. This advice suggests that it's likely to be deficient in Manganese, rather than Magnesium, ...
2
votes
1answer
320 views

Does aerating water to raise the pH in nutrient solutions work well?

As anyone who has ever had to tend to a pool painfully discovered, aerating water causes the oxygen to react with something and raise the pH. From what I have read it converts contents of the water ...
2
votes
1answer
233 views

Why is my leaf changing light green on one side? [closed]

I have several strains that I am watering with the same nutrients but this one is showing this light green discoloration on half of the leaf. None of the other plants are showing this. All conditions ...
2
votes
2answers
110 views

Are (water) re-grown spring onions worth it?

Spring onions (or scallions) can be re-grown in water by saving the roots and placing them in water and, as the article in the link suggests, these re-grow in to full spring onions within a matter of ...
2
votes
0answers
46 views

pondplants with a lack of nutrients? [closed]

I have a gardenpond (roughly 16000 litres) which is crystal clear. The pond contains no fish, only amphibians and insect life and a lot of plants. some plants, like the pondweed are real hardhitters ...
1
vote
1answer
125 views

How much calcium nitrate should I add to 32 fl. oz. of water?

I have some prilled Greenway Biotech calcium nitrate (15.5% nitrogen; 19% calcium) that I want to put in a 32 fluid ounce spray bottle to spray on the leaves of pepper and tomato plants, and such. If ...
1
vote
0answers
47 views

Is there an ultrasonic mist maker that can create water droplet with diameter 50 microns for aeroponic purposes? [closed]

An ultrasonic mist maker seems a superior solution for an aeroponic crop, since there would less problem with clogging, power consumption, noise, etc. However, current ultrasonic mist maker make ...